Solar Energy - Services Offered
a. Solar Panel Sales
b. Quality and Distribution
c. Solar Site Evaluation
d. Solar System Design and Installation
Wind Energy - Services Offered
a. Wind Turbine Sales
b. Quality and distribution
c. Wind Site Evaluation
d. System Design and Installation
Renewable Energy Efficiency Improvement - Services Offered
1. Energy gap: The energy prediction in the US is optimistic by 10% to actual production.
This gap is due to significant difference in:
a. Met Tower measurements
b. Single wind speed measurements over weighted average wind speeds
c. Turbine power curve loss
d. Uncertainty in wind resource year to year
e. Anemometer accuracy and precision
f. etc.
2. Wake effects: Wake effects are contributing significant to loss of turbine generation. There are several formulas based on the wind rose to be anywhere from 3 to 12 rotor diameters. A good model will reduce this effect.
3. Type of anemometer: The cup anemometer, LIDAR and SODAR were presented. LIDAR appears to be getting more accuracy. Both LIDAR and SODAR have advantage by giving wind speeds at different heights. However, accuracy, legacy technology and correlation to cup anemometer needs to be studied.
4. Wind speed vs swept area weighted wind speed: With rotor diameters in the 100m range, measuring wind speed at one height is insufficient. The difference in wind speed between the bottom and top of the rotor can be greater than 15% which introduces errors in the wind assessment predictions.
5. Wind shear: Wind is a 3D fluid hence most wind is measured horizontally. However, there is a large vector component to the wind that can also introduce variability and uncertainty to the wind prediction.
6. Turbulence intensity: Due to wind gusts and wind speed frequency change, the turbulence intensity can be significant in some areas. The turbulence intensity is defined as the ratio of the standard deviation by mean of wind speed.
7. Curtailment: Due to significant reduction in utility rates in the Texas region, some farms had to shut their production down. This in one of the farms was nearly 7.5% of availability this year.
8. Availability: The availability is lagging since scheduled maintenance needs to be performed on time and during off peak wind periods.
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| Product / Service |
Solar & Wind Systems |
| Site evaluations |
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| Energy audit & evaluation |
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| Site suitability |
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| Production |
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| Economics |
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| Design |
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| Mounting design |
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| Electrical design |
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| Off grid |
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| On grid |
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| Parts supply |
All parts UL certified. |
| Installation |
All union labor. |
Recent installation of Mouli Engineering Inc. – 4.44kW system.
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